Provide a brief explanation, based on features of the molecules, for the following trend in pKa values CH3CH2OH > CH3COOH       15.9                4.76

Q: Answer the following questions. a. How many oxygen atoms are in 2 formula units of Na3PO4 7H₂O? b.…

A: Note: Since you have posted a question with multiple sub-parts, we will solve the first three…

Q: When 22.0 mL of a 7.86X 10^-4 M ammonium carbonate solution is combined with 25.0 mL of a 1.44…

A: Answer: Precipitation of a sparingly soluble salt takes place when value of reaction quotient Q…

Q: What are two important factors that govern the study of Chemical Reactions?

A: As you posted multiple question. We will solve only first. If you need answer of any specific…

Q: Question 7 of 20 Which one of the equations below is an exothermic reaction? A) CO₂ (g) → C (s) + O₂…

A: The given reactions are shown below CO2 (g) → C (s) + O2 (g), ∆Ho = 394 kJ/mol. CaO (s) + H2O (l) →…

Q: Consider the following equilibria: 250g) 250g)+ 0g) K₁ = 23 × 10² 근 2NO(g) 2NO(g) + 0x₂ = 14 × 10³ ㄹ…

A: Since,Equilibrium constant or Kc is the ratio of the equilibrium concentrations of product over…

Q: The circus clown is a chemistry geek and likes to fill his balloons to exactly 30 moles of helium to…

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Q: 5 HOH C 4 3 ОН The Haworth projection of D-ribose is shown. Which carbon is the anomeric carbon? ОН…

A: The carbon atom that initially contains the carbonyl functional group in open chain sugar and in the…

Q: How many subshells are in the n = 3 shell? How many orbitals are in the n = 3 shell? What is the…

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Q: 8. The energy difference between the a and 3 spin states for an 'H nucleus is the external magnetic…

A: The question asks about the relationship between the energy difference between the spin states of a…

Q: 1B How to form this product?

A: The question involves the formation of E- Stilbene which can be formed by C-C Heck Coupling…

Q: An aqueous solution containing only hydroiodic acid has a [HI] of 0.006767 M. What is the pH of the…

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Q: Draw the two products of this reaction. Assume only 1 equivalent of HBr is consumed in this…

A: Organic reactions are those in which organic reactant react to form organic products. In the given…

Q: In the laboratory, you are given the task of separating Ba2+ and Co2+ ions in an aqueous solution.…

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Q: Propose a reasonable reaction mechanism for the following transformation & & CH3 OCH3 H₂O* H₂O/CH3OH…

A: In the presence acid the starting material gets converted to furan derivative which tautomerizes to…

Q: 4) If 42.57 mL of 0.10M NaOH is used to back titrate a mixture of an unknown mass of calciun…

A: Answer: Moles of HCl used will be equal to the moles of HCl reacted with CaCO3 and moles of NaOH,…

Q: What element forms an ion with an electronic configuration of [Ne] and a -2 charge? element symbol:

A: We have to tell which element forms an ion with an electronic configuration of [Ne] and a -2 charge.…

Q: borohydride (NaBH4) reacts with potassium chlorate (KCIO3) electronegative than hydrogen 6. Sodium…

A: We have to write a balanced chemical equation for the reaction of sodium borohydride (NaBH4) with…

Q: Peer Leader: Date: For all problems involving calculations, show your work. Carry the units through…

A: “Since you have posted multiple questions, we will provide the solutiononly to the first question as…

Q: n inorganic chemistry we learned about hard/soft acid/base. What is the best way to understand the…

A: Inorganic chemistry uses the hard/soft acid/base (HSAB) theory to explain why some chemical species…

Q: Calculate the solubility of PbCl4 in a .2 Moles solution of CaCl2 Ksp for PbCl4 = 8.7 x 10-75

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Q: What happens chemically during the saponification process when you add heat to the soap reaction…

A: Saponification is a chemical reaction in which an ester (such as glycerol tristearate) is hydrolyzed…

Q: The dry mass of a piece of textile is 1.4 grams. After 2 minutes of soaking in water the wet mass of…

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Q: please provide a reagent and detailed mechanism with arrows intermediates charges and lone pairs…

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Q: 15. A compound CsH₁0O gave the following spectral data: HNMR: 8 1.1 (doublet); 8 2.1 (singlet); 8…

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Q: How many signals would you expect each of the following molecules to have ifl ▪ectrum? Label the…

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Q: Beaker 0.00200 M Fe(NO3)3, mL 0.00200 M NaSCN, mL total volume, mL 1 3.000 2.000 10.00 2…

A: The question is based on the concept of solutions.   We Need to calculate concentration of ferric…

Q: 8. The reaction I + Cr₂0² → Iz(s) + Cr³+ Takes place in acidic solution. If the sources of I and…

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Q: 1. Why does the tip of your buret need to be free of air bubbles?

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: The gas-phate reaction 2 N₂O₂(g) 4 NO₂ (8) + 0₂ (8) has an activation energy of 103 k/mol, and the…

A: Given, 2N2O5(g) -----> 4NO2(g) + O2(g) Activation energy (Ea) = 103 kJ/mol Gas constant (R) =…

Q: 6. Consider that the average lung can hold about 6 liters of air and the composition of air is 78%…

A: Given that: Composition of N2 = 78 % Composition of O2 = 22 % Mass of air = 3.2 g Pressure = 1.3 atm…

Q: Give a specific example from this experiment of an error that would lead to a percent yield greater…

A: A percentage yield greater than 100% is possible if the final measurement of the product contains…

Q: Milk of magnesia, which is an aqueous suspension of magnesium hydroxide, is used as an antacid in…

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Q: Draw resonance structures and curly arrows to show how the following carbocations can be stabilised…

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Q: (g) = PC1₂(g) + Cl₂(g) Ke 1.80 at 250 °C A 0.1584 mol sample of PCI, (g) is injected into an empty…

A: Given, PCl5(g) ⇌ PCl3(g) + Cl2(g)  Equilibrium constant (Kc) = 1.80 Initially moles of PCl5(g) =…

Q: Calculate the PH and POH for a .008 Moles solution of HC2H3O2  and .01 Moles in KC2H3O2

A: Answer: Buffer solution is a type of solution that resists the change in its pH on adding small…

Q: Question 4 A sample consisting of 3.0 mol of perfect gas molecules with Cv.m, = 3R/2 which is…

A: Given that, a perfect gas undergoes reversible adiabatic compression, The number of moles is n = 3.0…

Q: How many electrons in an atom could have these sets of quantum numbers? n = 3 6 Incorrect n = 4, t =…

A: Electronic configuration refers to the distribution of electrons in the different energy levels,…

Q: Draw a structural formula for the product of the reaction shown. CH3 . CH3 • Use the wedge/hash bond…

A: The given reaction is the Diels-Alder reaction between diene and dienophile. Diels-Alder reaction is…

Q: Give the major product of the following reaction. 1) BH3/THF 2) H₂O2, NaOH OH -OH о Br -Br ∞ OH OH ?…

A: We have been given an organic reaction and we have been asked the major product of given organic…

Q: A solution is made by mixing 569 mL of water and 238 mL ethanol. What is the concentration of…

A: Given data :-  Volume of water = 569 mL Volume of Ethanol = 238 mL To find    Concentration of…

Q: A 0.10 M solution of a weak acid, "HA", has a pH of 5.20. Calculate [H30*]. Keep 2 sig figs in your…

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Q: Q10 C-N-CH3 + H₂O + HCI CH3

A: This reaction is : Acidic Hydrolysis of N,N-DIMETHYLBENZAMIDE

Q: Calculate the pH of the post-equivalence solution for the titration of 25.00 ll of a 0.025 M H2504…

A: Volume of H2SO4 solution = 25.00 mL = 0.025 L  Molarity of H2SO4 solution = 0.025 M = 0.025 mol/L…

Q: For the given reaction, what volume of O₂ would be required to react with 2.0 L of PC13, measured at…

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Q: Balance the redox reaction in acidic solution: Cu(s) + NO3(aq) → Cu²+ (aq) +NO₂(g) Express your…

A: Given reaction Cu(s)+ NO3- (aq) → Cu2+ (aq) + NO2 (g) Oxidation half reaction   Cu(s) →Cu2+ (aq)…

Q: A buffer is prepared by adding 25 mL of 0.10 M HA ( a weak acid) to 15 mL of 0. 10 M NaA (the salt…

A: We can calculate the pH of the Buffer solution by using The Henderson-Hasselbalch equation.…

Q: The half equivalence point in the titration of 0.100 M HCO2H (K a = 1.8 × 10–4) with 0.250 M NaOH…

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Q: How do chemists use computational methods to predict the properties of new molecules?

A: Chemists use computational methods to predict the properties of new molecules in order to design new…

Q: What are the products formed from the following reactions:  1) The addition of dimethylborane…

A: Dimethylborane (DMB or Me2BH) is a chemical reagent that is used in organic synthesis as a source of…

Q: Place the following fictitious monoprotic acids in order of increasing acidity. HD (k a = 6.3302x10…

A: pKa value: pKa value is negative logarithm of the acid dissociation constant (Ka). pKa = -logKa Low…

NMR Spectroscopy

NMR stands for Nuclear Magnetic Resonance in which the study of different molecules is done based on the interaction of radiofrequency electromagnetic radiations with the nuclei of molecules placed in a strong magnetic field. A precise study of spectra of visible light and all bands of electromagnetic radiation is called spectroscopy.